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Genetics Test Review Part 2
Test Description: Test Review
Instructions: Answer all questions to get your test result.
1) Which of the following is influenced by polygenic inheritance?
A
hair color
B
blood type
C
sickle cell anemia
D
Tay-Sachs disease
2) Which of the following is an example of codominance?
A
two traits of a character expressed at the same time
B
an intermediate or blended flower color in a plant.
C
many different flower colors in plants
3) Colorblindness
A
is seen in homozygous dominant individuals
B
provides resistance to infections
C
is a Y linked trait
D
is a sex linked trait
4) Black fur is dominant to brown fur in rabbits. White and gray fur exhibit incomplete dominance. How can you find the genotype of a rabbit with black fur?
A
mate the black rabbit with a white rabbit
B
mate the black rabbit with another black rabbit
C
mate the black rabbit with a gray rabbit
D
mate the black rabbit with a brown rabbit
5) An organism with the genotype Aa would be considered...
A
homozygous recessive
B
heterozygous
C
homozygous dominant
6) An organism with a genotype of aa would be considered...
A
homozygous recessive
B
homozygous dominant
C
heterozygous
7) An organism with the genotype AA would be considered...
A
heterozygous
B
homozygous dominant
C
homozygous recessive
8) Which of the following would be an example of heterozygous?
A
Aa
B
tt
C
AA
D
YY
9) Which of the following would be considered homozygous recessive?
A
Aa
B
YY
C
tt
D
AA
10) Which of the following would be considered homozygous dominant?
A
YY
B
tt
C
Both a and b
D
AA
*select an answer for all questions
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